1980•Optics LettersRequires access

Frequency-plane filtering with an achromatic optical transform

G. Michael Morris, Nicholas George

Abstract

A holographic matched filter has been recorded in the frequency plane of an achromatic optical transform configuration. Sandwich-type zone plates and an achromatic doublet are used to form the transform system, which is in cascade with the hologram filter and an achromatic-fringe interferometer. Correlation experiments are reported in which a large space-bandwidth and broad spectral range are obtained.

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Available abstract

Key concepts: Achromatic lens, Optics, Holography, Interferometry, Optical filter, Physics, Spatial filter, Materials science